<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>CSS选择器-通配符选择器</title>
    <style>
        /* 通配符选择器 */
        * {
            color: yellow;
        }
    </style>
</head>
<body>
    <span>我是span</span>
    <p>我是p标签</p>
    <div>我是div</div>
    <h3>我是h3</h3>
</body>
</html>